Invention Grant
- Patent Title: Method for determining a rotor position of an electrical generator in a wind turbine
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Application No.: US13008202Application Date: 2011-01-18
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Publication No.: US08089172B2Publication Date: 2012-01-03
- Inventor: Bing Li , Shu Yu Cao , Gert Karmisholt Andersen , Anshuman Tripathi , Eng Kian Kenneth Sng , Amit Kumar Gupta
- Applicant: Bing Li , Shu Yu Cao , Gert Karmisholt Andersen , Anshuman Tripathi , Eng Kian Kenneth Sng , Amit Kumar Gupta
- Applicant Address: DK Randers SV
- Assignee: Vestas Wind Systems A/S
- Current Assignee: Vestas Wind Systems A/S
- Current Assignee Address: DK Randers SV
- Agency: Wood, Herron & Evans, LLP
- Priority: DK200900754 20090619
- Main IPC: F03D9/00
- IPC: F03D9/00 ; H02P9/04

Abstract:
A method for determining a rotor position of an electrical generator in a wind turbine is described comprising determining a voltage of the electrical generator, determining a rotor position angle estimate based on the voltage of the electrical generator, determining a subsequent rotor position angle estimate through a feedback loop, based on a combination of the voltage of the electrical generator and the rotor position angle estimate. Further, a method to real time track encoder health is described comprising determining the phase angle of a reference voltage, determining the angle difference between the rotor position and the reference voltage, and determining the differentiation of the angle difference.
Public/Granted literature
- US20110109279A1 METHOD FOR DETERMINING A ROTOR POSITION OF AN ELECTRICAL GENERATOR IN A WIND TURBINE Public/Granted day:2011-05-12
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